Question

5. If Sin 2x = Sin 30° Cos 60° + Sin 60° Cos 30°, then value of x​

Answer 1

Answer:

45

Step-by-step explanation:

cos60=sin30

sin60=cos30

sin2x=sin30sin30+cos30cos30

sin2x=sin^2 30+cos^2 30

sin2x=1 By Identity

sin2x=sin90 as sin90=1

2x=90

x=45